The original meaning of the word "essay' is which of these? treatise dialogue attempt thought
2 answers:
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Answer:
Explanation:
Ohm's law states the relationship between voltage, resistance and current in an electrical circuit containing passive elements only:
where
V is the voltage supplied by the battery
R is the resistance of the circuit
I is the current
From the equation, we see that the voltage, V, is directly proportional to the current in the circuit, I.
Answer:
R = 20.21 ohms
Explanation:
Given that,
The length of the wire, l = 200 ft
The diameter of the wire, d = 0.01 in
Radius, r = 0.005 in
200 ft = 60.96 m
0.005 in = 0.000127 m
The resistivity of copper is,
So, the resistance of a wire is given by :
So, the resistance of the copper wire is 20.21 ohms.